query optimization – ITFROMZERO

Optimizing MySQL 8 with EXPLAIN ANALYZE: Don’t Let the Optimizer Mislead You

By admin May 9, 2026

Don't let the MySQL Optimizer mislead you with predicted numbers. Learn how to use EXPLAIN ANALYZE to accurately measure every millisecond of execution and optimize queries effectively.

MySQL

Practical Experience: Optimizing MySQL Query Performance with Index and EXPLAIN

By admin March 22, 2026

This article shares practical experience on how to optimize MySQL query performance using Indexes and the EXPLAIN tool. Learn about different Index types, how to analyze query execution plans, and important considerations when applying them to make your system run faster and more stable.

Database

Optimizing PostgreSQL Queries with EXPLAIN ANALYZE: Analyzing and Improving Query Performance

By admin March 8, 2026

Learn how to use EXPLAIN ANALYZE in PostgreSQL to read execution plans, analyze slow queries, and optimize performance with the right indexes. This guide goes from a 5-minute quick start to advanced techniques like covering indexes, composite indexes, and auto_explain.